CVE-2026-0988
📋 TL;DR
An integer overflow vulnerability in glib's g_buffered_input_stream_peek() function allows attackers to trigger a buffer overflow by providing specially crafted offset and count parameters. This can cause application crashes leading to Denial of Service. Any application using the affected glib library is potentially vulnerable.
💻 Affected Systems
- glib
- Applications using glib library
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution if the buffer overflow can be controlled to execute arbitrary code, though this is unlikely given the CVSS score and CWE classification.
Likely Case
Application crash leading to Denial of Service, potentially disrupting service availability.
If Mitigated
Minimal impact with proper input validation and memory protection mechanisms in place.
🎯 Exploit Status
Exploitation requires control over offset and count parameters passed to the vulnerable function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor-specific updates (e.g., Red Hat, Ubuntu)
Vendor Advisory: https://access.redhat.com/security/cve/CVE-2026-0988
Restart Required: Yes
Instructions:
1. Check your distribution's security advisories. 2. Update glib package using package manager. 3. Restart affected applications or system.
🔧 Temporary Workarounds
Input validation wrapper
allImplement input validation for parameters passed to g_buffered_input_stream_peek()
N/A - Requires code changes
🧯 If You Can't Patch
- Restrict access to applications using glib to trusted users only
- Implement network segmentation to limit exposure
🔍 How to Verify
Check if Vulnerable:
Check glib version against vendor advisoriesCheck Version:
pkg-config --modversion glib-2.0Verify Fix Applied:
Verify glib package version matches patched version from vendor📡 Detection & Monitoring
Log Indicators:
- Application crashes, segmentation faults in logs
Network Indicators:
- Unusual input patterns to applications using glib
SIEM Query:
search 'segmentation fault' OR 'SIGSEGV' in application logs